With the continuous improvement of process requirements, industrial washing machines from ordinary to fully automatic development, the current fully automatic industrial washing machine most of the use of multiple two-speed AC motor, due to the simple structure, firm, cheap and other characteristics, has been widely used. However, its disadvantage is that the speed regulation performance is poor, the speed mutation is large, the vibration is large. With the development of power semiconductor technology, in recent years, AC frequency conversion governor has been more popular in industrial washing machines, industrial washing machines have higher and higher requirements for frequency converters, which can meet the technical difficulties of industrial washing machines such as high starting torque, multi-speed, wide voltage range, automatic slip compensation and fast and powerful communication methods. And stable performance, can adapt to a variety of complex high temperature, high humidity environment.
Industrial washing machine industrial principle
Automatic industrial washing machine refers to a large capacity washing machine with functions such as initial washing, washing, rinsing, bleaching and dehydration, and no manual operation is required between the functions to achieve automatic conversion. The working principle of the automatic industrial washing machine is that under the unified scheduling management of the timing controller, the asynchronous motor is controlled by the inverter continuously to perform positive and negative rotation to achieve the asynchronous movement of water and clothing, so that the water and clothing rub and rub each other to achieve the purpose of washing.
Its main washing procedures are as follows:
Water - wash - uniform - medium - high - shake dry
Industrial washing machine structure drawing
Industrial washing machine appearance diagram
Industrial washing machine appearance diagram
The transmission system is an extremely important part of the industrial washing machine, because it mainly provides power support for the washing machine and participates in the whole washing process. The transmission system consists of a motor and a variety of variable speed mechanisms, and now mainly uses a frequency converter, so it significantly simplifies its components, which are generally composed of a frequency converter, asynchronous motor, pulley and transmission belt. And the whole washing stage, with the frequency of the inverter automatically adjusted to achieve no impact, no intermediate transition (transmission, transmission device or coupling, clutch, etc.) device constant torque speed change (stepless speed regulation), so that the energy consumption of the washing process has been significantly reduced.
Matters needing attention
Inverter in the industrial washing machine above the application, if found that the torque is not enough, because the use of vector control inverter is not accurate motor parameters self-learning, if the self-learning is unsuccessful or inaccurate, it is recommended to use VF mode.
Due to its process requirements, when selecting the inverter, it is generally based on the rated power of the motor equipped with the washing machine, and the power level is amplified to equip the inverter. The specific standard is the laundry weight for the rated power of the frequency converter *10 (Kg), the laundry weight for the rated power of the frequency converter *10 (Kg) the frequency converter needs to customize the VF curve, if the frequency converter increases a gear basically do not customize the VF curve, only need to set the functional parameters
In consideration of field use, please note the following:
1：because the whole system has more signal lines and more electronic and electrical equipment, the inverter control line and power line should be separated to prevent interference;
2：When installing, pay attention to the installation position to ensure that the heat dissipation channel is smooth and meet the heat dissipation requirements;
3：Waterproof, anti-corrosion to do a good job.
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